There are total 5 hours or 300 minutes from 4pm to 9pm. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 12AM to 9PM | 7PM to 1AM | 6PM to 9PM |
| 2PM to 12PM | 1PM to 7AM | 7AM to 11PM |
| 5PM to 9PM | 4PM to 1PM | 5PM to 3AM |
| 2PM to 3PM | 1AM to 5AM | 1PM to 7AM |
| 11AM to 10AM | 9AM to 10PM | 4PM to 9AM |
| 4PM to 6AM | 10PM to 12PM | 9PM to 2AM |
